IAD - SXM

$228 Find Cheap Flights from Washington Dulles Airport to Simpson Bay

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Simpson Bay departing on 2/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags

Search hundreds of travel sites at once for deals on flights to Simpson Bay

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Simpson Bay, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Simpson Bay, as well as popular online travel agencies
In the last 7 days travelers have searched 41,299,237 times on KAYAK, and here is why:

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Cheap Flight Deals from Washington Dulles Airport to Simpson Bay (IAD-SXM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington Dulles Airport to Simpson Bay that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Dulles Intl to Simpson Bay

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Dulles Intl to Simpson Bay.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
8:46 pm - 5:15 pmIAD-SXM
19h 29m2 stops
6:35 pm - 4:54 pmSXM-IAD
22h 19m2 stops
$275Frontier
Find Deal
Thu, Mar 6 - Mon, Mar 10
9:42 pm - 5:18 pmIAD-SXM
42h 36m2 stops
6:29 pm - 9:47 amSXM-IAD
40h 18m2 stops
$488Frontier
Find Deal
Sat, Jan 4 - Sat, Jan 11
1:12 am - 11:13 amIAD-SXM
9h 01m1 stop
12:13 pm - 3:13 amSXM-IAD
16h 00m1 stop
$543Copa Airlines
Find Deal
Sat, Jan 18 - Sun, Jan 26
6:22 am - 4:11 pmIAD-SXM
8h 49m2 stops
4:18 pm - 1:23 pmSXM-IAD
22h 05m2 stops
$559American Airlines
Find Deal
Mon, Jan 20 - Thu, Jan 30
6:00 am - 3:16 pmIAD-SXM
8h 16m1 stop
1:40 pm - 9:05 pmSXM-IAD
8h 25m1 stop
$580Delta
Find Deal
Sat, Feb 22 - Tue, Feb 25
8:05 pm - 12:20 pmIAD-SXM
15h 15m1 stop
3:20 pm - 1:23 pmSXM-IAD
23h 03m2 stops
$584American Airlines
Find Deal
Fri, Jan 24 - Thu, Jan 30
2:19 am - 11:21 amIAD-SXM
9h 02m1 stop
12:18 pm - 4:20 amSXM-IAD
16h 02m1 stop
$588Copa Airlines
Find Deal
Sat, Apr 26 - Sun, May 4
7:25 am - 3:16 pmIAD-SXM
6h 51m1 stop
5:35 pm - 12:20 amSXM-IAD
7h 45m1 stop
$605Delta
Find Deal
Sat, Feb 22 - Sat, Mar 1
6:05 am - 1:51 pmIAD-SXM
6h 46m1 stop
4:55 pm - 8:27 pmSXM-IAD
4h 32mnonstop
$614United Airlines
Find Deal
Tue, Feb 11 - Sun, Feb 16
8:46 am - 1:51 pmIAD-SXM
4h 05mnonstop
3:55 pm - 8:27 pmSXM-IAD
4h 32mnonstop
$630United Airlines
Find Deal
Thu, Mar 6 - Mon, Mar 10

Flights from Dulles Intl to Simpson Bay - Travel Insights & Trends

Get data-powered insights and trends into flights from Dulles Intl to Simpson Bay to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Simpson Bay?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Simpson Bay clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Washington Dulles Airport to Simpson Bay, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Simpson Bay, Monday is the cheapest day to fly and Friday is the most expensive.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Simpson Bay?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Simpson Bay, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Simpson Bay is September, where tickets cost $552 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $839 and $779 respectively.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to Simpson Bay?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $555 on average.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Simpson Bay?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Simpson Bay, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Simpson Bay, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low season

October

High season

June

Cheapest flight

$228
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Washington Dulles Airport to Simpson Bay

When to book flights from Dulles Intl to Simpson Bay

Are your dates flexible? Find out the best times to travel from Dulles Intl to Simpson Bay based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Simpson Bay flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Simpson Bay?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Simpson Bay was $228 for a one-way ticket and $275 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Simpson Bay?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington Dulles Airport and on arrival in Simpson Bay.

  • Which airports will I be using when flying from Washington Dulles Airport to Simpson Bay?

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at Simpson Bay, also known as Simpson Bay Princess Juliana.

  • Which airlines offer Wi-Fi service onboard planes from Washington Dulles Airport to Simpson Bay?

    JetBlue, American Airlines, and Delta offer inflight Wi-Fi service on the Washington Dulles Airport to Simpson Bay flight route.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Simpson Bay?

    The Boeing 737-700 is the aircraft model that flies most regularly on the Washington Dulles Airport to Simpson Bay flight route.

  • Which airline alliances offer flights from Washington Dulles Airport to Simpson Bay?

    Star Alliance is the only airline alliance operating flights between Washington Dulles Airport and Simpson Bay.

  • On which days can I fly direct from Washington Dulles Airport to Simpson Bay?

    There are nonstop flights from Washington Dulles Airport to Simpson Bay on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to Simpson Bay, Delta or Copa Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Simpson Bay are Delta and Copa Airlines. With an average price for the route of $659 and an overall rating of 8.0, Delta is the most popular choice. Copa Airlines is also a great choice for the route, with an average price of $525 and an overall rating of 7.7.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Simpson Bay?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Simpson Bay.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Simpson Bay?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Simpson Bay from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Simpson Bay?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Simpson Bay with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and SXM can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Simpson Bay?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Simpson Bay from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Dulles Intl Airport to Simpson Bay

  • Looking for a cheap flight? 25% of our users found flights on this route for $314 or less one-way and $689 or less round-trip.

Prefer to fly direct from Washington Dulles Airport to Simpson Bay?

Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Simpson Bay Princess Juliana Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to Simpson Bay Princess Juliana

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Simpson Bay Princess Juliana to Washington, D.C. Dulles Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights
See more direct flights

Top 5 airlines serving from Dulles Intl to Simpson Bay

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Simpson Bay. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Simpson Bay? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 8601 reviews
8.6Crew
7.9Entertainment
8.2Boarding
8.0Comfort
7.3Food
Airline reviews

I was with one of the last zones to board. It was kind of annoying to finally get called to board and my whole section was already on the plane. Clearly they boarded with previous zones. So by the time I got on board, there were no spaces for my luggage above my head. I had to put my luggage 4+ rows behind me, which meant that I had to wait even longer to get off the plane, since I had to wait for those rows to clear the aisle before I could retrieve my luggage and exit the plane. This also held up the plane cleaners, as they couldn't service my row until I cleared it, so they were all standing there waiting for me, while I'm standing there waiting for the other passengers to clear the aisle. Anyways, I wasn't in a rush this time, so I just waited, but I could see that being a problem in the future. Now, I could have checked my luggage, of course, but coincidentally, a friend of mine on the same flight got their luggage damaged (wheel completely knocked off) and was told by the Baggage Attendant in the airport that Delta doesn't "cover wheel damage" on luggage. This was disappointing to hear. I'm glad I didn't check mine through. If it were my luggage, I'd be highly frustrated to hear that. It makes me not want to check my luggage in the future.

8.0 ExcellentMelodii, Dec 2024ATL - MSY
Read more Delta reviews

I was with one of the last zones to board. It was kind of annoying to finally get called to board and my whole section was already on the plane. Clearly they boarded with previous zones. So by the time I got on board, there were no spaces for my luggage above my head. I had to put my luggage 4+ rows behind me, which meant that I had to wait even longer to get off the plane, since I had to wait for those rows to clear the aisle before I could retrieve my luggage and exit the plane. This also held up the plane cleaners, as they couldn't service my row until I cleared it, so they were all standing there waiting for me, while I'm standing there waiting for the other passengers to clear the aisle. Anyways, I wasn't in a rush this time, so I just waited, but I could see that being a problem in the future. Now, I could have checked my luggage, of course, but coincidentally, a friend of mine on the same flight got their luggage damaged (wheel completely knocked off) and was told by the Baggage Attendant in the airport that Delta doesn't "cover wheel damage" on luggage. This was disappointing to hear. I'm glad I didn't check mine through. If it were my luggage, I'd be highly frustrated to hear that. It makes me not want to check my luggage in the future.

The dear was very limited in space. I could put my water bottle in seat basket. Also, there was no inflight entertainment in the delta app?

Typically I give delta excellent reviews. Our flight was delayed 2hrs, I was one of the fortunate ones who were able to get to my connecting flight. Also, annoying that on the connecting flight boarding personnel make me put away a small bag into my carryon. It small enough to put in back pocket seat, why hold me and the line up to just push it into my carryon.

Logan airport construction meant that boarding was chaotic crowded and delayed

Everything was great. Great service, excellent communication, and early arrival

We were forced to wait nearly 50 additional minutes before leaving the terminal.

Free Wi-Fi is good. That’s all - food mediocre, unfriendly crew, poor communication after trying to file a claim for my lost bag, which Delta didn’t even know was lost until I told them.

Delta flight attendants poorly managed the boarding process and overhead storage. My bag was checked last minute and no claim ticket was provided. My bag is now lost. Complete incompetence by all flight crew involved.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

Customer service at the gate in the flight was exceptional. On time. Aircraft and seat was decent. Thanks Delta. 💗

Great! The airline is very spacious and the crow was good.

It was first time fling in copa airline. In general I am satisfied except bag size. I got a email from copa with 17-10-6 for carry on bag. In airport the check in show 22-14-10 . However that mistake means $100,00 in over cost.

Not being in the back row and having to pay for a better seat

Boarding groups were called up in Spanish only. Luckily I know some of the language. They gave out grilled cheese sandwiches and a cup of fruit. I was very disappointed. I could only eat the cup of fruit because the only other option was vanilla pudding. The entertainment system and seating were great though.

Everything was smooth and crew was very polite and friendly.

Seemed roomier than most US domestic airlines and they served food.

The flight was 6 hours delayed due to equipment problems, I had to spend my night in the airport terminal in tight quarters. A bag of chips was all they offered, Then I missed my connecting flight and waited another 2 hours. All in all that trip took me almost one day.

I like that they served a mail, I’m not sure about the in-flight entertainment. I didn’t really check. staff helped me with my luggage. Smooth boarding smooth takeoff smooth flight

It's the first time I couldn't check in online because they told me I had to call because there was a problem. Despite having called twice, I had to check in at the airport

Copa definitely offers better service and price than other airlines.

We arrived early and finally made it to our gate almost an hour after.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

The flying experience was great. The flight was on time with no boarding issues during a peak travel period. The short cut baggage drop and process was not smooth and efficient at Dulles.

Fast checkin with the self serve terminal, good communication at the boarding gate.

Very friendly staff. The flight was on time. Need a bit heavy covers/blankets. It can get colder with a thin blanket.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

This was a 5 hour flight with no entertainment and with a snack being provided (pretzels and fruit bar), which are both high in carbs and sugar. Nuts would have been a better choice.

Never nice, United Express partners always do an amazing job.

Everything was perfect except the pad at the top of the seat back. It pushes my head forward in a very uncomfortable position and it is not removable.

Good plane, crew, and flight. Boarding was a bit chaotic. Bathrooms were unacceptable. United DESPERATELY needs a new terminal at IAD.

Other than being delayed 5.5 hours and having to get a hotel because I missed my connecting flight, it was an okay flight. No in-flight Wi-Fi or entertainment.

Flight areas delayed 3 hours , train in the airport didn’t work

Flight attendant walked away once they landed and we were forced to wait another hour after an already 3hr delay.

No overhead space so all carryons were checked. No internet.

The flight was on time and everything went very smoothly.

A thousand choices for movies and nothing to watch. I avoid 'R' rated shows and others with violence and sexual content, which results in a handful of flicks to view and I have them already.

Check bag location is full of rude employees who are unwilling to assist with issues after talking to AA on the phone and relaying messages. The boarding was good. While on the flight it got really hot. Asked flight attendant if there’s a way to drop the temp and make it more comfortable as we are flying from DC to Miami so flying from cold to hot weather. No changes made. Stayed hot and uncomfortable on the plane. When asked again about the AC being down the flight attendant said no the WiFi was down but not the AC. I mentioned it was still hot. No changes.

No food, no entertainment. But the flight was really short so maybe they had to skip drinks. I was able to board early ONLY because I am old and decrepit and they let me pre-board. I RESENT your dumping us into category 9 if we do not pay up. And when I paid for a seat I was STILL given 9. The pre-boarding helps. THIS flight was exceptionally smooth, please congratulate the pilots.

On time (actually a little early). Was a good and short flight!

Great - quick boarding and landed early with an available gate.

I was comfortable because I upgraded. I would not have been comfortable in economy. It was a short flight so there was limited food service and no inflight entertainment.

I thought since I upgraded my seat I would get some perks. Free water, free snacks. Free carry on luggage.

Seats were surprisingly comfortable, and crew was polite. I did not like the baggage fee prices, the minimal amount of flight choices for my area and the difficulty of the self service bag drop.

Lost MacBook, had time to retrieve, but was told I had no time. Need Silver MacBook back

It’s ridiculous to pay for carry-on luggage. I also wasn’t given an option to specify I have carry on bag at time of ticket purchase. I also could not specify I have carry on luggage at time of online check-in.

I’ve now flown Spirit a few times and while the general perception of Spirit I feel is poor, I’ve had a great experience each time. They do charge extra for everything but you should know that going in

The people were wonderful, but I hated the way they over charged for luggage, especially for stops which were charged the same as starting point to final destination.

Horrible I paid for extra for better seats. At time of checking my seats were sold to someone else. I need a refund and more for my bad experience

First time flying Spirit and I was pleasantly surprised. Service was as advertised. Crew were very professional and friendly and excellent in dealing with a customer who felt ill on the flight.

Delayed fight LAS to LAX. OK, fog in LA, not your fault. But all your staff, onboard in in lounge, speak so fast, enunciate so poorly and often have a accent that it is impossible to understanding anything they are saying.

Book cheap flights from Washington, D.C. to Simpson Bay

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Simpson Bay found on KAYAK in the last 72 hours.
2/25Tue
1 stopAir Canada
24h 40mIAD-SXM
$228
2/25Tue
2 stopsAir Canada
23h 20mIAD-SXM
$233
1/22Wed
1 stopAmerican Airlines
6h 38mIAD-SXM
$277
4/19Sat
1 stopDelta
6h 57mIAD-SXM
$302
1/21Tue
1 stopCopa Airlines
9h 01mIAD-SXM
$319
5/24Sat
2 stopsAmerican Airlines
19h 41mIAD-SXM
$327
1/6Mon
1 stopDelta
6h 54mIAD-SXM
$367
5/24Sat
nonstopUnited Airlines
4h 12mIAD-SXM
$383
1/6Mon
nonstopUnited Airlines
4h 05mIAD-SXM
$407
12/26Thu
1 stopCopa Airlines
9h 06mIAD-SXM
$1,657

Search by stops

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Last minute flights from Dulles Intl to Simpson Bay

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to Simpson Bay that are departing in the next 10 days.
12/22Sun
multi-stopAir Canada
28h 40mIAD-SXM
12/29Sun
multi-stopAir Canada
40h 10mSXM-IAD
$749
12/22Sun
multi-stopAir Canada
28h 40mIAD-SXM
12/27Fri
multi-stopAir Canada
17h 31mSXM-IAD
$771
12/23Mon
multi-stopAmerican Airlines
18h 01mIAD-SXM
12/29Sun
multi-stopAmerican Airlines
16h 35mSXM-IAD
$994
12/22Sun
nonstopUnited Airlines
4h 05mIAD-SXM
12/30Mon
nonstopUnited Airlines
4h 32mSXM-IAD
$995
12/23Mon
multi-stopAmerican Airlines
18h 01mIAD-SXM
12/27Fri
multi-stopAmerican Airlines
16h 35mSXM-IAD
$1,009
12/22Sun
nonstopUnited Airlines
4h 05mIAD-SXM
12/29Sun
nonstopUnited Airlines
4h 32mSXM-IAD
$1,020
12/25Wed
multi-stopDelta
6h 52mIAD-SXM
1/7Tue
multi-stopDelta
11h 42mSXM-IAD
$1,368
12/25Wed
multi-stopDelta
22h 10mIAD-SXM
12/30Mon
multi-stopDelta
27h 00mSXM-IAD
$1,377
12/21Sat
multi-stopCopa Airlines
9h 06mIAD-SXM
12/29Sun
multi-stopCopa Airlines
12h 15mSXM-IAD
$2,181
12/21Sat
multi-stopCopa Airlines
9h 06mIAD-SXM
12/27Fri
multi-stopCopa Airlines
12h 15mSXM-IAD
$2,281

Search by stops

Search by airline

Search by price

Everything you need to know for your flight from Dulles Intl to Simpson Bay

Information on your arrival and departure airports

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